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fayalite

American  
[fey-uh-lahyt, fahy-ah-lahyt] / ˈfeɪ əˌlaɪt, faɪˈɑ laɪt /

noun

Mineralogy.

  1. the iron end member of the olivine group, Fe 2 SiO 4 .

fayalite British  
/ ˈfeɪəˌlaɪt, faɪˈɑːlaɪt /

noun

  1. a rare brown or black mineral of the olivine group, consisting of iron silicate. Formula: Fe 2 SiO 4

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
fayalite Scientific  
/ fā′ə-līt′ /

  1. See under olivine

Etymology

Origin of fayalite

1835–45; named after Fayal; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.